Dental chair appliance



Oct. 7, 1941; 'w. SLUTZKY DENTAL CHAIR APPLIANCE Filed Oct. 9, 1940 WJZJNM% v INVENTOR Patented Oct. 7, 1941 UNETED STATES PATENT QEEICE DENTAL CHAIR APPLIANCE William Slutzky, Brooklyn, N. Y.

Application October 9, 1940, Serial No. 360,421

1 Claim.

ceptacle to receive the gold removed from the mountings during this operation.

Another object is to provide a receptacle for this purpose having a screened partition above a removable drawer for receiving the gold deposited through the screen, which drawer is adapted to be locked to the receptacle to prevent unauthorized removal of the gold from the same.

A further object of my invention is to provide means for extending the receptacle described from under the medicine tray of the dental chair into a convenient position for use by the operator.

I attain these objects as hereinafter described and illustrated in the accompanying drawing in which- Fig. 1 is a view of the receptacle in unextended position attached to the swinging arm of the medicine tray of the dental chair.

Fig. 2 is a View of the receptacle extended from the medicine tray into operative position.

Fig. 3 is a view of the several sections of the extensional device having part of the section broken away to reveal the stops to limit the movement of the sections in relation to each other.

Fig. 4 is a top view of the receptacle.

Fig.5 is a sectional view of the receptacle on the line a,--b Fig. 4. g

Fig, 6 is an end View of the receptacle partly broken away to reveal the screen 8, and deflector plates 9, and 9'.

Similar numerals refer to similar parts throughout the several views and referring to the drawing.

The receptacle, Figs. 4, 5 and 6 is hinged to the end 2, of section e of the extensional member 3, Figs. 1, 2, and 3; to section of which is secured the clamp 4, adapted to be attached to the swinging arm of the medicine tray 6, of the dental chair.

The extensible member Fig. 3, consists of several tubular sections 0, d and e, which may be of square, rectangular, or other angular cross section, e nesting within section d, which nests within section 0; section e being adapted to slide in section d which is also adapted to slide within section 0, the sections having the stops I, to limit the movement of the sections in relation to each other.

The receptacle I, Figs. 4, 5 and 6 is provided with a screen 8, the deflector plates 9 and 9 and a removable drawer Hi, having a lock II, whereby to lock the drawer Ill to the receptacle I. As shown in Fig. 6, the inner walls of receptacle I are downwardly and inwardly inclined toward its bottom, and the deflector plates 9 and 9 extending from opposite sides have their inner edges overlapping and vertically spaced so that the minute filings may freely slide into drawer H).

In operation the receptacle is extended from the medicine tray of the dental chair into convenient position for the dental operator, after which when not in use the receptacle may be returned in unextended position under the medicine tray. By reason of the non-rotatable nature of the extendible member or arm 3 and the hinged connection of the receptacle l to the end 2 for swinging movement about a vertical axis only, inversion of the appliance for removal of the gold filings is prevented.

Having described my dental chair appliance which is believed to be new and useful I claim:

In combination with a dental chair bracket, a telescoping arm of non-rotatable sections secured to said bracket; an upwardly opening receptacle for receiving gold filings or the like hingedly mounted on the extendible end of said telescoping arm for swinging movement about a vertical axis only, said receptacle having inner walls downwardly and inwardly inclined toward its bottom, a screen extending across the said receptacle somewhat below its upper edge, and downwardly inclined deflector plates extending from opposite sides of said receptacle below said screen and having their inner edges overlapping and vertically spaced; and a removable drawer fitted into said receptacle below its deflector plates and adapted to be secured therein against unauthorized removal.

WILLIAM SLUTZKY. 

